wash returns nothing and quits instantly

[GoogleCodeExporter]

I had this problem since always and apparently this is very common on Arch 
linux. 

mon0 is enabled and I am using RTL8187 card.
This is what happens:

# wash -i mon0

Wash v1.4 WiFi Protected Setup Scan Tool
Copyright (c) 2011, Tactical Network Solutions, Craig Heffner 
<cheffner@tacnetsol.com>

BSSID                  Channel       RSSI       WPS Version       WPS Locked    
    ESSID
--------------------------------------------------------------------------------
--

#

wash instantly quits back to prompt, returns no error or anything. I have to 
use Backtrack virtual machine to be able to run it.

Why is this so and why the problem is still there since over half a year? I am 
not the first person with that problem, it is quite common on Arch linux and no 
one found solution to it yet.

Original issue reported on code.google.com by conrad.f...@googlemail.com on 12 Dec 2013 at 7:01

[GoogleCodeExporter]

According to the post No. 20 on 
https://code.google.com/p/reaver-wps/issues/detail?id=217 , you may have a 
newer version of libpcap.
Try downgrading libpcap.

I know it is difficult to downgrade something on ArchLinux. I am finding 
solutions too.

Original comment by b13...@gmail.com on 16 May 2014 at 11:54